Rio de Janeiro, Brazil, 1950. In the conservative home of the Gusmão family, Eurídice and Guida are two inseparable sisters who support each other. While Guida can share with her younger sister the details of her romantic adventures, Eurídice finds in her older sister the encouragement she needs to pursue her dream of becoming a professional pianist.

A woman tries to help her twin sister, with whom she has a strong connection, recover from a trauma. But weird things surround their lives.